And now some of the fall-out from the significant opinion out of Maryland that warrantless use of Stingray by police is unconstitutional. WTSP reports:

Lawyers in Baltimore have identified as many as 200 people who were sent to prison based on evidence police gathered with the help of a powerful cellphone tracking tool that a state court has now ruled was used illegally.

The ruling, issued Wednesday by Maryland’s second-highest court, said Baltimore police violated the Constitution when they used one of the tracking devices to catch a shooting suspect without first obtaining a search warrant. It was the first time an appeals court had weighed in directly on the legality of phone-trackers that have been widely — and mostly secretly — used by police agencies for nearly a decade.